This weekend thousands protested in Washington against the Keystone XL pipeline. The protests followed a push by a bipartisan group of senators asking President Obama to approve the pipeline.

By
Valerie Volcovici, Reuters /
February 18, 2013

(From center to right) Bill McKibben, Fiona McRaith, Leah Qusba, and Maayan Cohen join a march from the National Mall to the White House in Washington during a rally on calling on President Barack Obama to reject the Keystone XL oil pipeline from Canada, as well as act to limit carbon pollution from power plants and 'move beyond' coal and natural gas, Sunday.

Organizers of the "Forward on Climate" event estimated that 35,000 people from 30 states turned out in cold, blustery conditions for what they said was the biggest climate rally in U.S. history. Police did not verify the crowd size.